Manitowoc Grove GRT8120, Operator'S Manual

Page: 93 / 448

Grove
Published 3-22-2021, Control # 702-02
3-19
GRT8120 OPERATOR MANUAL OPERATING CONTROLS AND FEATURES
3
USB Diagnostic Connector
The RDM and ODM each have a USB Diagnostic Connector
(4, Figure 3-6) located immediately below and to the left of its
related display module screen.
The USB Diagnostic Connectors allow a service technician
to connect to the display modules and update its software or
download the data logger from the RDM, which records
certain events that can occur when operating the crane.
NOTE: These USB Diagnostic Connectors are not
powered and will not charge a phone or tablet.
RCL Shutdown Warning Indicator (Non-CE
Certified Cranes)
The RCL Shutdown Warning Indicator (5, Figure 3-6) is
located immediately below and to the right of the RDM
screen.
The RCL Shutdown Warning Indicator comes on (red) when
the RCL senses a lift that is greater than 100% of crane
capacity for the programmed configuration.
When the RCL senses a lift that is greater than 100% of
crane capacity, the crane control system will lock out the
boom up/down, telescope extend, and hoist up crane
functions, which would worsen the overload condition.
RCL Shutdown Warning Indicator (CE
Certified Cranes)
The RCL Shutdown Warning Indicator (5, Figure 3-6) is
located immediately below and to the right of the RDM
screen.
The RCL Shutdown Warning Indicator comes on (red) when
the RCL senses a lift that is between 100% to 110% of crane
capacity for the programmed configuration.
When the RCL senses a lift between 100% to 110% of crane
capacity, the crane control system will lock out the boom
up/down, telescope extend, and hoist up crane functions,
which would worsen the overload condition.
RCL Early Warning Indicator
The RCL Early Warning Indicator (6, Figure 3-6) is located
immediately below and to the right of the RDM screen.
The RCL Early Warning Indicator comes on (amber) and the
buzzer will repeatedly come and go off when the RCL senses
a lift that is between 90% to 100% of crane capacity for the
programmed configuration.
Anti-Two-Block (A2B) Indicator
The Anti-Two-Block Indicator (7, Figure 3-6) is located
immediately below and to the right of the ODM screen.
The A2B Indicator comes on (red) when a two-block
condition occurs.
When a two-block condition occurs, the crane control system
will lock out the hoist up, boom down, and telescope out
crane functions, which would worsen the two-block condition
if operated.
Swing Brake Engaged Indicator
The Swing Brake Engaged Indicator (8, Figure 3-6) is
located immediately below and to the right of the ODM
screen.
The swing brake engaged indicator comes on (amber) when
the swing brake is applied. The indicator goes off when the
swing brake is released.
The swing brake is automatically released when the swing
controller is actuated. The swing brake is automatically
applied when the superstructure stops rotating.
Brightness Sensor
A Brightness Sensor (9, Figure 3-6) is located immediately
below and to the right of the RDM screen and ODM screen.
The Brightness Sensors sense the amount of light in the
operator cab. As the amount of light inside the cab changes,
the RDM screen and the ODM screen will brighten and
darken automatically, making the screens easier for the
operator to see.
Internal Temperature Warning Indicator
An Internal Temperature Warning Indicator (10, Figure 3-6)
is located immediately below and to the right of the RDM
screen and ODM screen.
When the Ignition Switch is turned to the RUN (I) position
and the internal temperature of either the RDM or the ODM is
b el o w - 3 0 °C ( - 22 ° F ) , th e r e l at e d m o du l e I nt er na l
Temperature Warning Indicator will come on (blue) and the
module screen will remain blank.
When the Ignition Switch is turned to the RUN (I) position
and the internal temperature of either the RDM or the ODM is
a b o v e 7 0 ° C ( 1 5 8 ° F ) , t h e r e l a t e d m o d u l e I n t e r n a l
Temperature Warning Indicator will come on (red) and the
module screen will remain blank.
For the RDM and ODM screens to come on, their internal
temperatures must be between -30°C (-22°F) and 70°C
(158°F).